Roongroj Phoogpan. 1999. Morphology and mechanical properties of biaxially oriented films of recycled polyethylenes. Program of Petrochemistry and Polymer Science, Chulalongkorn University;
Roongroj Phoogpan. (1999) Morphology and mechanical properties of biaxially oriented films of recycled polyethylenes . Chulalongkorn University/Bangkok.
Roongroj Phoogpan. Morphology and mechanical properties of biaxially oriented films of recycled polyethylenes. . Bangkok:Chulalongkorn University, 1999.
Roongroj Phoogpan. (1999) Morphology and mechanical properties of biaxially oriented films of recycled polyethylenes . Chulalongkorn University/Bangkok.